Best Developmental Toy for Toddlers to Build Motor & Problem-Solving Skills Discover a world of interactive learning and play with the Activity House 12-in-1, one of the best educational toys for toddlers aged 18 months and up. With a charming farmhouse theme, this Montessori-inspired activity center features 12 engaging sensory and fine motor skill activities, including shape sorting, gear turning, and light-up switches. It’s a developmental toy designed to boost coordination, creativity, and problem-solving perfect for curious toddlers and preschoolers.